Frits Klein was born in 1898 in Java, into a well-to-do family. He was sent back to Holland for his schooling, and it was there he came into contact with the art-minded Wegerif family. Frits knew that he wanted to be an artist, and in 1920 left for Paris - setting himself up there in a house of the Rue de depart, where Mondrian also had a studio. But in 1926, along with a group of other Amsterdam artistic types, he moved south to Cagnes, near to Nice. Frits became known as a "sunny" and decorative painter. He used much colour in his work. Circus horses were his favourite subject - also clowns and beach and street scenes.
In 1928 he and Marie Raymond had a son, Yves. Always interested in materials, Frits often mixed his own paints. One day, with the front door and window frames of their home needing re-painting, he mixed a particular shade of blue. Years later his Yves would use that at his inspiration for his monochrome paintings and sculptures in so-called "International Klein Blue". Frits Klein reportedly said of the legendary avante-gardist, "had he not been my son, I would have simply found it all a huge joke, but he was my son, and so I tried to understand his work. I am still not there". Yves died young in 1963.
On Frits' 80th birthday he was honoured with a major retrospective at the Van Gogh museum in Amsterdam and on his 90th a second retrospective at the Pulchri in the Hague. Klein died in 1990.